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Emissions and Smog Testing

Working Hours
  • Mon 7:30AM - 5:00PM
    Tue 7:30AM - 5:00PM
  • Wed 7:30AM - 5:00PM
    Thu 7:30AM - 5:00PM
  • Fri 7:30AM - 5:00PM
    Sat Closed
  • Sun Closed

Emissions and Smog Testing

At Advanced Auto & Smog, we help our Visalia customers' cars run as cleanly and efficiently as they possibly can. We provide a range of emissions testing services to ensure that your car is running and driving its best, as well as complying with all local smog regulations. Should a problem arise with any of your vehicle's emission systems, we provide the parts and expertise to get you back on the road. Advanced Auto & Smog can replace mufflers/catalytic converters, refill diesel exhaust fluid, and make sure the full range of filters in your vehicle's exhaust system are working perfectly.

Regulators understand that older cars simply can't meet modern emissions standards without extensive modifications. For newer cars however, passing a smog test is a requirement of road legality. Call us at 559-734-5684 to learn more about the emissions requirements for your vehicle.

Emissions testing (also known as smog testing) is a vital part of the maintenance of your vehicle. E-tests provide your mechanic with important information about your car's engine and exhaust system. If important components, like your car's catalytic converter aren't working properly, the car isn't running as it was intended to by the manufacturer. Inefficiency costs you extra money in fuel and does unnecessary harm to the planet. Emissions testing can also affect the value of a vehicle you're trying to sell; while you can still sell a car without a valid e-test certification, you'll get more money for one that has passed the test.

There are several reasons that a car may fail its emissions test. There may be a problem with the vehicle's fuel system adding too much fuel to the air-fuel ratio required for proper combustion within the cylinders of the car's engine. This is known as "running rich" and results in the smell of gasoline from fuel passing through the engine and exhaust system without being fully burnt. Causes of this issue range from faulty fuel injectors to issues with the engine's control computer. There may also be problems with oxygen sensors or the vehicle's ignition system. At Advanced Auto & Smog, we use a complete set of diagnostic equipment to determine the problem and fix it quickly, explaining every step of the process to you, our valued patron. Call us at 559-734-5684 or send us an email to arrange a health check for your car's emissions system today!

What People Say About Us


  • -Jim M.

    I have been a customer for many years. Dave ALWAYS takes care of our cars keeping them on the road. Very very honest. I have gone in requesting something be fixed and he has told me it didn't need it. An adjustment was all that was needed. I trust them with all of my repairs. You won't be disappointed. Give them a try.


  • -Tim J.

    Great place. Friendly staff. Fair prices. Highly recommend.


  • -Steven F.

    These guys are quick and efficient. Asked for my car to have a pretest and if it passes to go ahead and smog it. LOWEST price on smog in Visalia hands down. Check em out and you won't be disappointed!


  • -Mike P.

    Straight up and Honest... Can't ask for much more!


  • -Dominic B.

    Can't say enough good about Dave, he's by far one of the most knowledgeable guys in the business.


  • -Lori R.

    Dave at Advanced Auto & Smog is great to do business with, very fairly priced, and does honest work. Highly recommend!

Call us for service: 559-734-5684

ASE Master Technician
Parts Plus CCC
CA Certified Smog Check
  • Car Care Aware